Navy I do see the physical separation as effective like Denver says. In my case I didnt have that and it has made things harder. Here has been my approach though.
Be the husband you want to be, be the husband you owe yourself to be.
This means a husband who is respected, loves; but also gives respect and gives love.
The behavior your W has been showing is wonderful, but remember this is the baseline not the holy grail. You should get this at a minimum. Don't be afraid to demand it.
Then balance it out with the love and support she and your family needs.
Nasty behavior will get her a divorce, good behavior will get her a loving husband.
Ok enough negativity
You're in a good position, time to solidify your gains and move forward.